Check the listing for details. RYOBI 40V 15 in. Expand-It Cordless Battery Attachment Capable String Trimmer. Condition: Used. Listed at 77.99 USD. The 40V 15" String Trimmer delivers more power than a 25cc gas string trimmer, making it a true gas replacement without the hassle of gas. With just the pull of a trigger, trim for 1 hour using a 40V 4Ah battery. Save money, time, and space with attachment capability and transform your string trimmer into a variety of tools. This trimmer is compatible with RYOBI EXPAND-IT attachments & other universal attachments to take on any job around the yard. Trim weeds & grass with the adjustable 13" to 15" cut swath. A larger cut swath will give you maximum performance while a smaller cut swath gives you maximum runtime. This trimmer is equipped with a variable speed trigger to achieve maximum control when trimming along fences, mailboxes, and flower beds. Conveniently reload your .080" line in und.